Biofuel and Permaculture expert and author of Alcohol Can Be A Gas! Fueling an Ethanol Revolution for the 21st Century David Blume is a pioneer in Ethanol and BioFuels production science and research, Permaculture and community-supported agriculture (CSA). Blume holds a patent for a process that uses alcohol fuel production byproducts as a nontoxic replacement for poisonous herbicides and fertilizers and consults with governments, agricultural organizations, companies, and individuals to develop sustainable food and fuel programs.